General projects: Mechanical and electrical equipment manufacturing; Electronic special equipment manufacturing; Electronic components and electromechanical components equipment manufacturing; Hardware products manufacturing; Construction metal accessories manufacturing; General equipment manufacturing (excluding special equipment manufacturing); Mechanical equipment sales; Electrical mechanical equipment sales; Hardware products retail; Pneumatic power machinery and components sales; Hardware wholesale; Sales of electronic components and electromechanical components; Electronic special equipment sales; Sales of hydraulic power machinery and components; Information technology consulting service; Technology service, technology development, technology consultation, technology exchange, technology transfer, technology popularization (except for the projects that need to be approved according to law, independently carry out business activities according to law with the business license).